JP2513476B2 - Ink amount control device correction value display method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is a display applied when displaying a correction value of an ink supply status in an ink amount control device for controlling a printing density for a printing press. It is about the method.

[Conventional technology]

A print density control device has recently been developed in order to perform labor-saving control of print density. For example, this is a correction value to be set by photoelectrically measuring the print density of a printing surface and correcting the result. It is composed of a density measuring device for sending out, and an ink amount control device for displaying according to a correction value from now on and for actually sending a control signal of the ink supply amount to a printing machine by an artificial judgment based on this. ing.

In addition, in the ink amount control device, a paper table on which printed paper is placed, and a display that displays the ink supply amount for each range obtained by dividing the printing surface of the paper according to the ink supply status of the printing machine. It is equipped with an ink fountain blade opening adjustment switch provided corresponding to this, and a cathode ray tube display, etc., and the correction value for each divided range is displayed as a bar graph by the cathode ray tube. The current amount of ink supplied by the indicator for each divided range is compared, and it is the basis for deciding whether or not to set the blade opening amount to a corrected value by artificial judgment.

[Problems to be solved by the invention]

However, while the indicator for each divided range is provided in correspondence with the paper stand, the CRT display is provided on the side of the paper stand, etc. It is difficult to visually grasp the correspondence with the display of the ink supply amount by the container, which causes a problem that causes a wrong judgment or a wrong operation.

[Means for solving problems]

In order to solve the above-mentioned problem, the present invention is constituted by the following means.

That is, in the ink amount control device that displays the ink supply amount for each range obtained by dividing the printing surface according to the ink supply status, the current value indicating the current ink supply amount and the ink supply amount to be set by correction are indicated. The difference from the correction value is calculated, and the part showing the difference amount is displayed as a different display status depending on the direction of the difference with respect to the current value ink supply amount display, while the blade opening / closing increase / decrease switch is displayed during the correction value display. When operated, the correction value corresponding to the operated blade opening increase / decrease switch is increased / decreased, and when the blade opening increase / decrease switch is operated while the correction value is not displayed, it is changed to the operated blade opening increase / decrease switch. The corresponding current value shall be increased or decreased.

[Action]

Therefore, together with the current value of the ink supply amount, the amount showing the difference from the correction value is displayed at the same time, and this display status changes depending on the direction of the difference, and it is immediately judged whether the current value should be increased or decreased. it can. Further, when the blade opening amount increasing / decreasing switch is operated while the correction value is displayed, the correction value corresponding to the operated blade opening amount increasing / decreasing switch is increased / decreased. Further, when the blade opening / closing switch is operated while the correction value is not displayed, the current value corresponding to the operated blade opening / closing switch is increased or decreased.

〔Example〕

Hereinafter, the details of the present invention will be described with reference to the drawings illustrating examples.

FIG. 2 is a schematic diagram showing the entire configuration, including a density measuring device (hereinafter, DME) 1 and an ink amount control device (hereinafter, I
VC) 2 on which the printed paper 21 is placed, and the printing surface of the paper base 22 and the paper 21 on which the printed paper 21 is planarly adsorbed by a vacuum adsorption device or the like depending on the ink supply situation. Each indicator 23 ₁ to 23 _n that displays the ink supply amount for each range in the divided vertical direction by the blade opening amount of the ink fountain, and the switches 24 _{1 to} 24 _n for adjusting the blade opening amount corresponding thereto,
An indicator 25 for displaying the ink feed amount according to the number of revolutions of the ink roller, a switch 26 for adjusting the ink feed amount for increasing or decreasing the number of revolutions of the ink roller, etc. are provided, and indicators 23 ₁ to 23 _n are provided.
For this, a bar display in which a plurality of light emitting diodes and the like are vertically arranged is used, and the current value of the ink supply amount is displayed for each range by continuous light emission from the lower side to the upper side.

Also, the DME1 is installed on the upper side of the paper stand 22 and
The laterally continuous small rectangular printing surface called the color patch printed on the upper side of the upper side is optically scanned, and the correction value to be set is corrected by comparison with the print density data of the standard state that has been set beforehand. Obtained, and this is to be given to the IVC2 for each divided range, in IVC2, in addition to the display of the current value by each of the indicators 23 ₁ to 23 _n , after calculating the difference between the current value and the correction value, A part that indicates the amount of difference is added to the ink supply amount display of the current value, and a different blinking status is displayed according to the direction of the difference, and is displayed for each divided range by each display 23 ₁ to 23 _n. It is said.

Therefore, the attendant responds to the display of the indicators 23 ₁ to 23 _n ,
It becomes easier to judge whether the current value of each ink supply should be increased or decreased.
_{When 1 to} 24 _n or 26 is operated, the corresponding blade opening control signals CB _{1 to} CB _n or the ink roller speed control signal CR are sent to the printing machine not shown in the figure to control the print density. Done.

In the case of a multi-color printing machine, these displays and controls are performed for each color, and the target color is designated according to the operation of the switch that selects the printing unit for each color.

FIG. 3 is a block diagram of the control circuit housed in the IVC2, which is a processor such as a microprocessor (hereinafter,
Memory consisting of fixed memory (hereinafter ROM) and variable memory (hereinafter RAM) (hereinafter MEM) 3 centering on CPU (CPU) 31
2. Various interfaces (hereinafter, I / F) 33 to 37 are arranged in the periphery, and these are connected by a bus 38. The I / F 36 includes a group of switches (each of which is shown below in FIG. 2). SW) 39
The output from is given and the DME1 is connected to the I / F37, while the I / F33 displays (hereinafter, DP) 23 ₁ ...
A drive signal for 23 _n is transmitted, and the control signals CB _{1 to} CB _n and CR are transmitted from the I / Fs 34 and 35 via the drivers (hereinafter, DR) 40 ₁ and 40 ₂ , respectively. There is.

FIG. 4 is a block diagram showing the details of the I / F 33. Here, the CPU 41, which is similar to the CPU 31, is also the center, and
MEM42 and register (hereinafter REG) 43, I /
F44 is arranged in the periphery and these are connected by bus 45, and while exchanging data with CPU31 via I / F44,
Transmission data for DP23 ₁ to 23 _n are sequentially accumulated in REG43,
This is to drive the display status of DP 23 ₁ to 23 _n .

In this case, the CPUs 31 and 41 are respectively associated with the corresponding MEMs 32 and 4
Executing the instructions stored in the ROM of 2 and corresponding ME
It performs a predetermined control operation while accessing the required data to the RAM in M32, 42. CPU31 responds to the correction value from DME1 and the operation of SW39, and CPU41 responds to the bus 3
It is intended to respond to data from the CPU 31 given through the I / F 44 and the I / F 44.

FIG. 5 is a flow chart of the control state by the CPU 31, (A) shows a steady process, (B) to (D) show the first to third interrupt processes, respectively. In the case of a color printing machine, perform "Unit selection switch output / read" 101 that specifies the printing unit for each color provided in SW39, and correspondingly store the "current value of the selected unit" in the RAM.・ Corrected value ・ Display blinking cycle ・ Data
After sending "Send to DP" 102 to the I / F 33, send the DR 40 ₁ , 40 ₂ by "Send blade open amount, feed amount, and each data of all units to DR" stored in RAM 103. through by sending a control signal CB ₁ to CB _n, the CR to each Yunitsuto, step 10
Repeat from 1 onwards.

In (B), it is executed in response to the blade opening / closing increase / decrease switch operation in SW39, "Switch output reading (increase / decrease switch) / (unit selection switch)" 201 is performed, and "correction value display Check "202" and if it is N (NO), that is, if the correction value is not displayed, increase or decrease the current value corresponding to the operated increasing / decreasing switch of the selected unit. "21
1 increases / decreases the current value data in RAM and
Is Y (YES), that is, when the correction value is being displayed, the correction value data in the RAM is increased or decreased by "increase or decrease the correction value corresponding to the operated increase / decrease switch of the selected unit" 212. That is, in this embodiment, when the blade opening / closing amount increasing / decreasing switch is operated while the correction value is displayed, the correction value is increased / decreased instead of the current value corresponding to the operated blade opening amount increasing / decreasing switch. As a result, the operator can check the correction value displayed on the display 23 and finely adjust it. Further, in the present embodiment, if the blade opening / closing amount increasing / decreasing switch is operated while the correction value is not displayed, the current value is increased / decreased instead of the correction value corresponding to the operated blade opening amount increasing / decreasing switch. As a result, the blade opening / closing amount increase / decrease switch is also used as a switch for increasing / decreasing the correction value while the correction value is displayed, and as a switch for increasing / decreasing the current value while the correction value is not displayed, and it is necessary to provide an individual switch. Disappears.

In (C), the processing is executed in response to a data transmission / reception request from DME1, and if the request from DME1 is Y of "transmission?" 301,
While "Send all current values" 302 sends each current value data in RAM to DME1, when step 301 is N, "Receive modified value and store in RAM" 311 is executed, and SW39 The "correction value display selection?" 312 is determined according to the correction value display switch output of, and the "correction value display flag / set for each unit" 321 is performed according to Y of this, while at step 312 N, "Current value memory ← modified value" 322
The correction value is stored for calculation in the current value data area in RAM, and “Calculate the difference between the correction value and the current value for each range” 331
Is executed and whether the direction of the difference is positive or negative is judged by "corrected value-current value?" 332, and if the difference is "0", "set blinking cycle without blinking" 341 is performed and step 332 Is positive ">", "Set blinking cycle to i" 3
42, and when step 343 is a negative "<", perform "set blinking cycle to d" 343, and then "all data end?" Select 352 and repeat from step 331 onwards.

In (D), it is executed in response to the control permission switch operation in SW39, and "the current value of the selected unit ←
With the "correction value" 401, the current value is updated with the correction value,
Corresponding to step 321, "correction value display flag / reset of the unit" 402 is performed.

FIG. 1 is a flow chart of the control status performed by the CPU 41 in response to the control by the CPU 31 described above. (A) shows steady processing, (B) and (C) show first and second interrupt processing. , (A), the “current value / correction value / blinking cycle / each data is received and stored in RAM” 501 is repeated via the I / F 44.

In (B), depending on steps 341 and 342, for example, 5
The cycle i of times / sec is repeated according to the interrupt command by the timer of the set period i / 2, and the “i flag set?” 601 indicating the cycle i is checked. If this is N, “flashing By sending "correction value of cycle i to DP" 611, this data is sent to the corresponding _{one of} DPs 23 ₁ to 23 _n through REG43, and "i flag set" 612 is performed, while step 601 In case of Y, this data is sent via REG43 in step 61 by "send current value of blinking cycle i to DP" 621.
It is sent out in the same manner as 1 and the "i flag reset" 622 is performed, and then "send current value without blinking to DP" 631 is performed in the same manner as in step 611.

It was but connexion, in DP23 ₁ ~ 23 _n shown in FIG. 2, the relationship between the current value and the correction value of the division range if step 341,
If only the current value is continuously displayed by repeating step 631, and if the same relationship is step 342, then step 611 and
Because the cyclic repeat with 621 displays the modified value including the current value and the current value alternately, the current value is displayed continuously, whereas the amount of difference between the modified value and the current value is displayed. The portion shown is only displayed by step 611, and this portion blinks in the cycle i and becomes visually apparent.

In (C), according to step 343, a cycle d different from the cycle i, for example, 10 times / sec, is repeated according to an interrupt command by a timer of a set period d / 2, and indicates the cycle d. Check "d-flag-set?" 701, and when it is N, send this data in the same manner as step 611 by "send correction value of blinking cycle d to DP" 711, and send "d-flag set" 712. On the other hand, if step 701 is Y, then "send current value of blinking cycle d to DP" 721 is sent in the same manner as step 611, and then "d flag reset" 722 is performed.

Therefore, if the relationship between the current value of the divided range and the correction value is step 343 in DP23 ₁ to 23 _n in FIG. 2, the current value including the correction value is displayed by step 721, and step 711 is displayed. Displays only the correction value, and this is repeated with the period d / 2, so the correction value is displayed continuously, while the part showing the amount of difference between the current value and the correction value is stepped.
It is displayed only by 721, and this portion flashes at the cycle d, becomes apparent, and is a flashing cycle d different from the flashing cycle i by steps 611 and 612, and the direction of the difference is also displayed clearly at the same time.

However, the display status between the current value and the part showing the amount of difference is
Each is easily visible on determination and enough. Distinctly different display status according to the direction of the difference, not the difference in blinking and flashing cycle only, depending on the type and display content of DP23 ₁ ~ 23 _n , The color development, the brightness, the width of the bar graph, etc. may be different for each individual, or a combination thereof may be used.

In addition, the configurations of FIGS. 2 to 4 can be arbitrarily selected according to the situation, and in FIGS. 1 and 5,
Replace each step with another equivalent, according to your conditions,
Alternatively, various modifications are possible, such as changing the order or omitting unnecessary ones.

〔The invention's effect〕

As is apparent from the above description, according to the present invention, the amount indicating the difference between the current value and the correction value is displayed with respect to the current value of the ink supply amount, and the display status of the portion indicating the difference amount is different. Since it is different depending on the direction, it is easy and clear to understand the relationship between the current value and the correction value, there is no misidentification or erroneous operation when correcting the ink supply amount, and there is a remarkable effect in displaying the correction value for print density control. can get.

Further, according to the present invention, when the blade opening / closing amount increasing / decreasing switch is operated while the correction value is displayed, the correction value corresponding to the operated blade opening amount increasing / decreasing switch is increased / decreased, and the blade opening amount is displayed while the correction value is not displayed. When the volume increase / decrease switch is operated,
The current value corresponding to the operated blade opening / closing increase / decrease switch is increased / decreased, and it is possible to check the correction value while observing the display status of the correction value and perform fine adjustment. In addition, the blade opening / closing amount increase / decrease switch can be used both as a switch for increasing / decreasing the correction value while the correction value is displayed, and as a switch for increasing / decreasing the current value while the correction value is not displayed. There is no need to provide it.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a flow chart of a display control situation, FIG. 2 is a schematic diagram showing the entire configuration, FIG. 3 is a block diagram of a control circuit, and FIG. 4 is a detailed interface. FIG. 5 is a block diagram showing the flow chart of FIG. 1 ...... DME (concentration measuring apparatus), 2 ...... IVC (ink amount control device), 21 ...... paper, 22 ...... paper tray, 23 ₁ ~ 23 _n ...... DP
(Display), 31,41 …… CPU (processor), 32,42 …… M
EM (memory), 33 to 37,44 ... I / F (interface), 39 ... SW (switch group), 40 ₁ , 40 ₂ ... DR (driver), 43 ... REG (register).

Claims (1)

(57) [Claims] 1. An ink supply controller for displaying an ink supply amount for each range obtained by dividing a printing surface according to an ink supply condition, and an ink supply to be set by correcting the present value indicating the current ink supply amount. The difference with the correction value indicating the amount is calculated, and the portion indicating the difference amount is displayed as a different display situation depending on the direction of the difference with respect to the current value ink supply amount display, while the correction value is not displayed. When the blade open / close switch is operated, the correction value corresponding to the operated blade open / close switch is increased / decreased, and when the blade open / close switch is operated while the correction value is not displayed, it is operated. A modified value display method for the ink amount control device, characterized in that the current value corresponding to the blade opening / closing switch is increased or decreased.